Gitiles
Code Review Sign In
gerrit-public.fairphone.software / platform / external / ImageMagick / 6162bb4e7c779ce061621052a419a14081ca38b7 / . / coders / meta.c
blob: 03fbbf4c1f4f28d6b14992b048f6530abf591369 [file] [log] [blame]
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% M M EEEEE TTTTT AAA %
% MM MM E T A A %
% M M M EEE T AAAAA %
% M M E T A A %
% M M EEEEE T A A %
% %
% %
% Read/Write Embedded Image Profiles. %
% %
% Software Design %
% William Radcliffe %
% July 2001 %
% %
% %
% Copyright 1999-2011 ImageMagick Studio LLC, a non-profit organization %
% dedicated to making software imaging solutions freely available. %
% %
% You may not use this file except in compliance with the License. You may %
% obtain a copy of the License at %
% %
% http://www.imagemagick.org/script/license.php %
% %
% Unless required by applicable law or agreed to in writing, software %
% distributed under the License is distributed on an "AS IS" BASIS, %
% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
% See the License for the specific language governing permissions and %
% limitations under the License. %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%
*/
/*
Include declarations.
*/
#include "MagickCore/studio.h"
#include "MagickCore/blob.h"
#include "MagickCore/blob-private.h"
#include "MagickCore/exception.h"
#include "MagickCore/exception-private.h"
#include "MagickCore/image.h"
#include "MagickCore/image-private.h"
#include "MagickCore/list.h"
#include "MagickCore/magick.h"
#include "MagickCore/memory_.h"
#include "MagickCore/module.h"
#include "MagickCore/profile.h"
#include "MagickCore/splay-tree.h"
#include "MagickCore/quantum-private.h"
#include "MagickCore/static.h"
#include "MagickCore/string_.h"
#include "MagickCore/string-private.h"
#include "MagickCore/token.h"
#include "MagickCore/utility.h"
/*
Forward declarations.
*/
static MagickBooleanType
WriteMETAImage(const ImageInfo *,Image *);
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% I s M E T A %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% IsMETA() returns MagickTrue if the image format type, identified by the
% magick string, is META.
%
% The format of the IsMETA method is:
%
% MagickBooleanType IsMETA(const unsigned char *magick,const size_t length)
%
% A description of each parameter follows:
%
% o magick: compare image format pattern against these bytes.
%
% o length: Specifies the length of the magick string.
%
%
*/
#ifdef IMPLEMENT_IS_FUNCTION
static MagickBooleanType IsMETA(const unsigned char *magick,const size_t length)
{
if (length < 4)
return(MagickFalse);
if (LocaleNCompare((char *) magick,"8BIM",4) == 0)
return(MagickTrue);
if (LocaleNCompare((char *) magick,"APP1",4) == 0)
return(MagickTrue);
if (LocaleNCompare((char *) magick,"\034\002",2) == 0)
return(MagickTrue);
return(MagickFalse);
}
#endif
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e a d M E T A I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ReadMETAImage() reads a META image file and returns it. It
% allocates the memory necessary for the new Image structure and returns a
% pointer to the new image.
%
% The format of the ReadMETAImage method is:
%
% Image *ReadMETAImage(const ImageInfo *image_info,
% ExceptionInfo *exception)
%
% Decompression code contributed by Kyle Shorter.
%
% A description of each parameter follows:
%
% o image: Method ReadMETAImage returns a pointer to the image after
% reading. A null image is returned if there is a memory shortage or
% if the image cannot be read.
%
% o image_info: Specifies a pointer to an ImageInfo structure.
%
% o exception: return any errors or warnings in this structure.
%
*/
#define BUFFER_SZ 4096
typedef struct _html_code
{
short
len;
const char
*code,
val;
} html_code;
static html_code html_codes[] = {
#ifdef HANDLE_GT_LT
{ 4,"&lt;",'<' },
{ 4,"&gt;",'>' },
#endif
{ 5,"&amp;",'&' },
{ 6,"&quot;",'"' },
{ 6,"&apos;",'\''}
};
static int stringnicmp(const char *p,const char *q,size_t n)
{
register ssize_t
i,
j;
if (p == q)
return(0);
if (p == (char *) NULL)
return(-1);
if (q == (char *) NULL)
return(1);
while ((*p != '\0') && (*q != '\0'))
{
if ((*p == '\0') || (*q == '\0'))
break;
i=(*p);
if (islower(i))
i=toupper(i);
j=(*q);
if (islower(j))
j=toupper(j);
if (i != j)
break;
n--;
if (n == 0)
break;
p++;
q++;
}
return(toupper((int) *p)-toupper((int) *q));
}
static int convertHTMLcodes(char *s, int len)
{
if (len <=0 || s==(char*)NULL || *s=='\0')
return 0;
if (s[1] == '#')
{
int val, o;
if (sscanf(s,"&#%d;",&val) == 1)
{
o = 3;
while (s[o] != ';')
{
o++;
if (o > 5)
break;
}
if (o < 6)
(void) strcpy(s+1,s+1+o);
*s = val;
return o;
}
}
else
{
int
i,
codes = (int) (sizeof(html_codes) / sizeof(html_code));
for (i=0; i < codes; i++)
{
if (html_codes[i].len <= len)
if (stringnicmp(s,html_codes[i].code,(size_t) html_codes[i].len) == 0)
{
(void) strcpy(s+1,s+html_codes[i].len);
*s = html_codes[i].val;
return html_codes[i].len-1;
}
}
}
return 0;
}
static char *super_fgets(char **b, int *blen, Image *file)
{
int
c,
len;
unsigned char
*p,
*q;
len=*blen;
p=(unsigned char *) (*b);
for (q=p; ; q++)
{
c=ReadBlobByte(file);
if (c == EOF || c == '\n')
break;
if ((q-p+1) >= (int) len)
{
int
tlen;
tlen=q-p;
len<<=1;
p=(unsigned char *) ResizeQuantumMemory(p,(size_t) len+2UL,sizeof(*p));
*b=(char *) p;
if (p == (unsigned char *) NULL)
break;
q=p+tlen;
}
*q=(unsigned char) c;
}
*blen=0;
if (p != (unsigned char *) NULL)
{
int
tlen;
tlen=q-p;
if (tlen == 0)
return (char *) NULL;
p[tlen] = '\0';
*blen=++tlen;
}
return((char *) p);
}
#define BUFFER_SZ 4096
#define IPTC_ID 1028
#define THUMBNAIL_ID 1033
static ssize_t parse8BIM(Image *ifile, Image *ofile)
{
char
brkused,
quoted,
*line,
*token,
*newstr,
*name;
int
state,
next;
unsigned char
dataset;
unsigned int
recnum;
int
inputlen = BUFFER_SZ;
MagickOffsetType
savedpos,
currentpos;
ssize_t
savedolen = 0L,
outputlen = 0L;
TokenInfo
*token_info;
dataset = 0;
recnum = 0;
line = (char *) AcquireQuantumMemory((size_t) inputlen,sizeof(*line));
name = token = (char *)NULL;
savedpos = 0;
token_info=AcquireTokenInfo();
while (super_fgets(&line,&inputlen,ifile)!=NULL)
{
state=0;
next=0;
token=(char *) AcquireQuantumMemory((size_t) inputlen,sizeof(*token));
newstr=(char *) AcquireQuantumMemory((size_t) inputlen,sizeof(*newstr));
while (Tokenizer(token_info,0,token,(size_t) inputlen,line,"","=","\"",0,
&brkused,&next,&quoted)==0)
{
if (state == 0)
{
int
state,
next;
char
brkused,
quoted;
state=0;
next=0;
while (Tokenizer(token_info,0,newstr,(size_t) inputlen,token,"","#",
"", 0,&brkused,&next,&quoted)==0)
{
switch (state)
{
case 0:
if (strcmp(newstr,"8BIM")==0)
dataset = 255;
else
dataset = (unsigned char) StringToLong(newstr);
break;
case 1:
recnum = (unsigned int) StringToUnsignedLong(newstr);
break;
case 2:
name=(char *) AcquireQuantumMemory(strlen(newstr)+MaxTextExtent,
sizeof(*name));
if (name)
(void) strcpy(name,newstr);
break;
}
state++;
}
}
else
if (state == 1)
{
int
next;
ssize_t
len;
char
brkused,
quoted;
next=0;
len = (ssize_t) strlen(token);
while (Tokenizer(token_info,0,newstr,(size_t) inputlen,token,"","&",
"",0,&brkused,&next,&quoted)==0)
{
if (brkused && next > 0)
{
char
*s = &token[next-1];
len -= (ssize_t) convertHTMLcodes(s,(int) strlen(s));
}
}
if (dataset == 255)
{
unsigned char
nlen = 0;
int
i;
if (savedolen > 0)
{
MagickOffsetType
offset;
ssize_t diff = outputlen - savedolen;
currentpos = TellBlob(ofile);
offset=SeekBlob(ofile,savedpos,SEEK_SET);
if (offset < 0)
return(-1);
(void) WriteBlobMSBLong(ofile,(unsigned int) diff);
offset=SeekBlob(ofile,currentpos,SEEK_SET);
if (offset < 0)
return(-1);
savedolen = 0L;
}
if (outputlen & 1)
{
(void) WriteBlobByte(ofile,0x00);
outputlen++;
}
(void) WriteBlobString(ofile,"8BIM");
(void) WriteBlobMSBShort(ofile,(unsigned short) recnum);
outputlen += 6;
if (name)
nlen = (unsigned char) strlen(name);
(void) WriteBlobByte(ofile,nlen);
outputlen++;
for (i=0; i<nlen; i++)
(void) WriteBlobByte(ofile,(unsigned char) name[i]);
outputlen += nlen;
if ((nlen & 0x01) == 0)
{
(void) WriteBlobByte(ofile,0x00);
outputlen++;
}
if (recnum != IPTC_ID)
{
(void) WriteBlobMSBLong(ofile, (unsigned int) len);
outputlen += 4;
next=0;
outputlen += len;
while (len--)
(void) WriteBlobByte(ofile,(unsigned char) token[next++]);
if (outputlen & 1)
{
(void) WriteBlobByte(ofile,0x00);
outputlen++;
}
}
else
{
/* patch in a fake length for now and fix it later */
savedpos = TellBlob(ofile);
(void) WriteBlobMSBLong(ofile,0xFFFFFFFFU);
outputlen += 4;
savedolen = outputlen;
}
}
else
{
if (len <= 0x7FFF)
{
(void) WriteBlobByte(ofile,0x1c);
(void) WriteBlobByte(ofile,(unsigned char) dataset);
(void) WriteBlobByte(ofile,(unsigned char) (recnum & 0xff));
(void) WriteBlobMSBShort(ofile,(unsigned short) len);
outputlen += 5;
next=0;
outputlen += len;
while (len--)
(void) WriteBlobByte(ofile,(unsigned char) token[next++]);
}
}
}
state++;
}
token=DestroyString(token);
newstr=DestroyString(newstr);
if (name != (char *) NULL)
name=DestroyString(name);
}
token_info=DestroyTokenInfo(token_info);
line=DestroyString(line);
if (savedolen > 0)
{
MagickOffsetType
offset;
ssize_t diff = outputlen - savedolen;
currentpos = TellBlob(ofile);
offset=SeekBlob(ofile,savedpos,SEEK_SET);
if (offset < 0)
return(-1);
(void) WriteBlobMSBLong(ofile,(unsigned int) diff);
offset=SeekBlob(ofile,currentpos,SEEK_SET);
if (offset < 0)
return(-1);
savedolen = 0L;
}
return outputlen;
}
static char *super_fgets_w(char **b, int *blen, Image *file)
{
int
c,
len;
unsigned char
*p,
*q;
len=*blen;
p=(unsigned char *) (*b);
for (q=p; ; q++)
{
c=(int) ReadBlobLSBShort(file);
if ((c == -1) || (c == '\n'))
break;
if (EOFBlob(file))
break;
if ((q-p+1) >= (int) len)
{
int
tlen;
tlen=q-p;
len<<=1;
p=(unsigned char *) ResizeQuantumMemory(p,(size_t) (len+2),sizeof(*p));
*b=(char *) p;
if (p == (unsigned char *) NULL)
break;
q=p+tlen;
}
*q=(unsigned char) c;
}
*blen=0;
if ((*b) != (char *) NULL)
{
int
tlen;
tlen=q-p;
if (tlen == 0)
return (char *) NULL;
p[tlen] = '\0';
*blen=++tlen;
}
return((char *) p);
}
static ssize_t parse8BIMW(Image *ifile, Image *ofile)
{
char
brkused,
quoted,
*line,
*token,
*newstr,
*name;
int
state,
next;
unsigned char
dataset;
unsigned int
recnum;
int
inputlen = BUFFER_SZ;
ssize_t
savedolen = 0L,
outputlen = 0L;
MagickOffsetType
savedpos,
currentpos;
TokenInfo
*token_info;
dataset = 0;
recnum = 0;
line=(char *) AcquireQuantumMemory((size_t) inputlen,sizeof(*line));
name = token = (char *)NULL;
savedpos = 0;
token_info=AcquireTokenInfo();
while (super_fgets_w(&line,&inputlen,ifile) != NULL)
{
state=0;
next=0;
token=(char *) AcquireQuantumMemory((size_t) inputlen,sizeof(*token));
newstr=(char *) AcquireQuantumMemory((size_t) inputlen,sizeof(*newstr));
while (Tokenizer(token_info,0,token,(size_t) inputlen,line,"","=","\"",0,
&brkused,&next,&quoted)==0)
{
if (state == 0)
{
int
state,
next;
char
brkused,
quoted;
state=0;
next=0;
while (Tokenizer(token_info,0,newstr,(size_t) inputlen,token,"","#",
"",0,&brkused,&next,&quoted)==0)
{
switch (state)
{
case 0:
if (strcmp(newstr,"8BIM")==0)
dataset = 255;
else
dataset = (unsigned char) StringToLong(newstr);
break;
case 1:
recnum=(unsigned int) StringToUnsignedLong(newstr);
break;
case 2:
name=(char *) AcquireQuantumMemory(strlen(newstr)+MaxTextExtent,
sizeof(*name));
if (name)
(void) CopyMagickString(name,newstr,strlen(newstr)+MaxTextExtent);
break;
}
state++;
}
}
else
if (state == 1)
{
int
next;
ssize_t
len;
char
brkused,
quoted;
next=0;
len = (ssize_t) strlen(token);
while (Tokenizer(token_info,0,newstr,(size_t) inputlen,token,"","&",
"",0,&brkused,&next,&quoted)==0)
{
if (brkused && next > 0)
{
char
*s = &token[next-1];
len -= (ssize_t) convertHTMLcodes(s,(int) strlen(s));
}
}
if (dataset == 255)
{
unsigned char
nlen = 0;
int
i;
if (savedolen > 0)
{
MagickOffsetType
offset;
ssize_t diff = outputlen - savedolen;
currentpos = TellBlob(ofile);
offset=SeekBlob(ofile,savedpos,SEEK_SET);
if (offset < 0)
return(-1);
(void) WriteBlobMSBLong(ofile,(unsigned int) diff);
offset=SeekBlob(ofile,currentpos,SEEK_SET);
if (offset < 0)
return(-1);
savedolen = 0L;
}
if (outputlen & 1)
{
(void) WriteBlobByte(ofile,0x00);
outputlen++;
}
(void) WriteBlobString(ofile,"8BIM");
(void) WriteBlobMSBShort(ofile,(unsigned short) recnum);
outputlen += 6;
if (name)
nlen = (unsigned char) strlen(name);
(void) WriteBlobByte(ofile,(unsigned char) nlen);
outputlen++;
for (i=0; i<nlen; i++)
(void) WriteBlobByte(ofile,(unsigned char) name[i]);
outputlen += nlen;
if ((nlen & 0x01) == 0)
{
(void) WriteBlobByte(ofile,0x00);
outputlen++;
}
if (recnum != IPTC_ID)
{
(void) WriteBlobMSBLong(ofile,(unsigned int) len);
outputlen += 4;
next=0;
outputlen += len;
while (len--)
(void) WriteBlobByte(ofile,(unsigned char) token[next++]);
if (outputlen & 1)
{
(void) WriteBlobByte(ofile,0x00);
outputlen++;
}
}
else
{
/* patch in a fake length for now and fix it later */
savedpos = TellBlob(ofile);
(void) WriteBlobMSBLong(ofile,0xFFFFFFFFU);
outputlen += 4;
savedolen = outputlen;
}
}
else
{
if (len <= 0x7FFF)
{
(void) WriteBlobByte(ofile,0x1c);
(void) WriteBlobByte(ofile,dataset);
(void) WriteBlobByte(ofile,(unsigned char) (recnum & 0xff));
(void) WriteBlobMSBShort(ofile,(unsigned short) len);
outputlen += 5;
next=0;
outputlen += len;
while (len--)
(void) WriteBlobByte(ofile,(unsigned char) token[next++]);
}
}
}
state++;
}
token=DestroyString(token);
newstr=DestroyString(newstr);
name=DestroyString(name);
}
token_info=DestroyTokenInfo(token_info);
line=DestroyString(line);
if (savedolen > 0)
{
MagickOffsetType
offset;
ssize_t diff = outputlen - savedolen;
currentpos = TellBlob(ofile);
offset=SeekBlob(ofile,savedpos,SEEK_SET);
if (offset < 0)
return(-1);
(void) WriteBlobMSBLong(ofile,(unsigned int) diff);
offset=SeekBlob(ofile,currentpos,SEEK_SET);
if (offset < 0)
return(-1);
savedolen = 0L;
}
return outputlen;
}
/* some defines for the different JPEG block types */
#define M_SOF0 0xC0 /* Start Of Frame N */
#define M_SOF1 0xC1 /* N indicates which compression process */
#define M_SOF2 0xC2 /* Only SOF0-SOF2 are now in common use */
#define M_SOF3 0xC3
#define M_SOF5 0xC5 /* NB: codes C4 and CC are NOT SOF markers */
#define M_SOF6 0xC6
#define M_SOF7 0xC7
#define M_SOF9 0xC9
#define M_SOF10 0xCA
#define M_SOF11 0xCB
#define M_SOF13 0xCD
#define M_SOF14 0xCE
#define M_SOF15 0xCF
#define M_SOI 0xD8
#define M_EOI 0xD9 /* End Of Image (end of datastream) */
#define M_SOS 0xDA /* Start Of Scan (begins compressed data) */
#define M_APP0 0xe0
#define M_APP1 0xe1
#define M_APP2 0xe2
#define M_APP3 0xe3
#define M_APP4 0xe4
#define M_APP5 0xe5
#define M_APP6 0xe6
#define M_APP7 0xe7
#define M_APP8 0xe8
#define M_APP9 0xe9
#define M_APP10 0xea
#define M_APP11 0xeb
#define M_APP12 0xec
#define M_APP13 0xed
#define M_APP14 0xee
#define M_APP15 0xef
static int jpeg_transfer_1(Image *ifile, Image *ofile)
{
int c;
c = ReadBlobByte(ifile);
if (c == EOF)
return EOF;
(void) WriteBlobByte(ofile,(unsigned char) c);
return c;
}
#if defined(future)
static int jpeg_skip_1(Image *ifile)
{
int c;
c = ReadBlobByte(ifile);
if (c == EOF)
return EOF;
return c;
}
#endif
static int jpeg_read_remaining(Image *ifile, Image *ofile)
{
int c;
while ((c = jpeg_transfer_1(ifile, ofile)) != EOF)
continue;
return M_EOI;
}
static int jpeg_skip_variable(Image *ifile, Image *ofile)
{
unsigned int length;
int c1,c2;
if ((c1 = jpeg_transfer_1(ifile, ofile)) == EOF)
return M_EOI;
if ((c2 = jpeg_transfer_1(ifile, ofile)) == EOF)
return M_EOI;
length = (((unsigned char) c1) << 8) + ((unsigned char) c2);
length -= 2;
while (length--)
if (jpeg_transfer_1(ifile, ofile) == EOF)
return M_EOI;
return 0;
}
static int jpeg_skip_variable2(Image *ifile, Image *ofile)
{
unsigned int length;
int c1,c2;
(void) ofile;
if ((c1 = ReadBlobByte(ifile)) == EOF) return M_EOI;
if ((c2 = ReadBlobByte(ifile)) == EOF) return M_EOI;
length = (((unsigned char) c1) << 8) + ((unsigned char) c2);
length -= 2;
while (length--)
if (ReadBlobByte(ifile) == EOF)
return M_EOI;
return 0;
}
static int jpeg_nextmarker(Image *ifile, Image *ofile)
{
int c;
/* transfer anything until we hit 0xff */
do
{
c = ReadBlobByte(ifile);
if (c == EOF)
return M_EOI; /* we hit EOF */
else
if (c != 0xff)
(void) WriteBlobByte(ofile,(unsigned char) c);
} while (c != 0xff);
/* get marker byte, swallowing possible padding */
do
{
c = ReadBlobByte(ifile);
if (c == EOF)
return M_EOI; /* we hit EOF */
} while (c == 0xff);
return c;
}
#if defined(future)
static int jpeg_skip_till_marker(Image *ifile, int marker)
{
int c, i;
do
{
/* skip anything until we hit 0xff */
i = 0;
do
{
c = ReadBlobByte(ifile);
i++;
if (c == EOF)
return M_EOI; /* we hit EOF */
} while (c != 0xff);
/* get marker byte, swallowing possible padding */
do
{
c = ReadBlobByte(ifile);
if (c == EOF)
return M_EOI; /* we hit EOF */
} while (c == 0xff);
} while (c != marker);
return c;
}
#endif
static char psheader[] = "\xFF\xED\0\0Photoshop 3.0\08BIM\x04\x04\0\0\0\0";
/* Embed binary IPTC data into a JPEG image. */
static int jpeg_embed(Image *ifile, Image *ofile, Image *iptc)
{
unsigned int marker;
unsigned int done = 0;
unsigned int len;
int inx;
if (jpeg_transfer_1(ifile, ofile) != 0xFF)
return 0;
if (jpeg_transfer_1(ifile, ofile) != M_SOI)
return 0;
while (done == MagickFalse)
{
marker=(unsigned int) jpeg_nextmarker(ifile, ofile);
if (marker == M_EOI)
{ /* EOF */
break;
}
else
{
if (marker != M_APP13)
{
(void) WriteBlobByte(ofile,0xff);
(void) WriteBlobByte(ofile,(unsigned char) marker);
}
}
switch (marker)
{
case M_APP13:
/* we are going to write a new APP13 marker, so don't output the old one */
jpeg_skip_variable2(ifile, ofile);
break;
case M_APP0:
/* APP0 is in each and every JPEG, so when we hit APP0 we insert our new APP13! */
jpeg_skip_variable(ifile, ofile);
if (iptc != (Image *)NULL)
{
len=(unsigned int) GetBlobSize(iptc);
if (len & 1)
len++; /* make the length even */
psheader[2]=(char) ((len+16)>>8);
psheader[3]=(char) ((len+16)&0xff);
for (inx = 0; inx < 18; inx++)
(void) WriteBlobByte(ofile,(unsigned char) psheader[inx]);
jpeg_read_remaining(iptc, ofile);
len=(unsigned int) GetBlobSize(iptc);
if (len & 1)
(void) WriteBlobByte(ofile,0);
}
break;
case M_SOS:
/* we hit data, no more marker-inserting can be done! */
jpeg_read_remaining(ifile, ofile);
done = 1;
break;
default:
jpeg_skip_variable(ifile, ofile);
break;
}
}
return 1;
}
/* handle stripping the APP13 data out of a JPEG */
#if defined(future)
static void jpeg_strip(Image *ifile, Image *ofile)
{
unsigned int marker;
marker = jpeg_skip_till_marker(ifile, M_SOI);
if (marker == M_SOI)
{
(void) WriteBlobByte(ofile,0xff);
(void) WriteBlobByte(ofile,M_SOI);
jpeg_read_remaining(ifile, ofile);
}
}
/* Extract any APP13 binary data into a file. */
static int jpeg_extract(Image *ifile, Image *ofile)
{
unsigned int marker;
unsigned int done = 0;
if (jpeg_skip_1(ifile) != 0xff)
return 0;
if (jpeg_skip_1(ifile) != M_SOI)
return 0;
while (done == MagickFalse)
{
marker = jpeg_skip_till_marker(ifile, M_APP13);
if (marker == M_APP13)
{
marker = jpeg_nextmarker(ifile, ofile);
break;
}
}
return 1;
}
#endif
static Image *ReadMETAImage(const ImageInfo *image_info,
ExceptionInfo *exception)
{
Image
*buff,
*image;
int
c;
MagickBooleanType
status;
StringInfo
*profile;
size_t
length;
void
*blob;
/*
Open file containing binary metadata
*/
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickSignature);
if (image_info->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
image_info->filename);
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickSignature);
image=AcquireImage(image_info);
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
if (status == MagickFalse)
{
image=DestroyImageList(image);
return((Image *) NULL);
}
image->columns=1;
image->rows=1;
if (SetImageBackgroundColor(image) == MagickFalse)
{
InheritException(exception,&image->exception);
image=DestroyImageList(image);
return((Image *) NULL);
}
length=1;
if (LocaleNCompare(image_info->magick,"8BIM",4) == 0)
{
/*
Read 8BIM binary metadata.
*/
buff=AcquireImage((ImageInfo *) NULL);
if (buff == (Image *) NULL)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
blob=(unsigned char *) AcquireQuantumMemory(length,sizeof(unsigned char));
if (blob == (unsigned char *) NULL)
{
buff=DestroyImage(buff);
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
}
AttachBlob(buff->blob,blob,length);
if (LocaleCompare(image_info->magick,"8BIMTEXT") == 0)
{
length=(size_t) parse8BIM(image, buff);
if (length & 1)
(void) WriteBlobByte(buff,0x0);
}
else if (LocaleCompare(image_info->magick,"8BIMWTEXT") == 0)
{
length=(size_t) parse8BIMW(image, buff);
if (length & 1)
(void) WriteBlobByte(buff,0x0);
}
else
{
for ( ; ; )
{
c=ReadBlobByte(image);
if (c == EOF)
break;
(void) WriteBlobByte(buff,(unsigned char) c);
}
}
profile=AcquireStringInfo((size_t) GetBlobSize(buff));
SetStringInfoDatum(profile,GetBlobStreamData(buff));
status=SetImageProfile(image,"8bim",profile);
profile=DestroyStringInfo(profile);
if (status == MagickFalse)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
blob=DetachBlob(buff->blob);
blob=(unsigned char *) RelinquishMagickMemory(blob);
buff=DestroyImage(buff);
}
if (LocaleNCompare(image_info->magick,"APP1",4) == 0)
{
char
name[MaxTextExtent];
(void) FormatLocaleString(name,MaxTextExtent,"APP%d",1);
buff=AcquireImage((ImageInfo *) NULL);
if (buff == (Image *) NULL)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
blob=(unsigned char *) AcquireQuantumMemory(length,sizeof(unsigned char));
if (blob == (unsigned char *) NULL)
{
buff=DestroyImage(buff);
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
}
AttachBlob(buff->blob,blob,length);
if (LocaleCompare(image_info->magick,"APP1JPEG") == 0)
{
Image
*iptc;
int
result;
if (image_info->profile == (void *) NULL)
{
blob=DetachBlob(buff->blob);
blob=RelinquishMagickMemory(blob);
buff=DestroyImage(buff);
ThrowReaderException(CoderError,"NoIPTCProfileAvailable");
}
profile=CloneStringInfo((StringInfo *) image_info->profile);
iptc=AcquireImage((ImageInfo *) NULL);
if (iptc == (Image *) NULL)
{
blob=DetachBlob(buff->blob);
blob=RelinquishMagickMemory(blob);
buff=DestroyImage(buff);
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
}
AttachBlob(iptc->blob,GetStringInfoDatum(profile),
GetStringInfoLength(profile));
result=jpeg_embed(image,buff,iptc);
blob=DetachBlob(iptc->blob);
blob=RelinquishMagickMemory(blob);
iptc=DestroyImage(iptc);
if (result == 0)
{
blob=DetachBlob(buff->blob);
blob=RelinquishMagickMemory(blob);
buff=DestroyImage(buff);
ThrowReaderException(CoderError,"JPEGEmbeddingFailed");
}
}
else
{
#ifdef SLOW_METHOD
for ( ; ; )
{
/* Really - really slow - FIX ME PLEASE!!!! */
c=ReadBlobByte(image);
if (c == EOF)
break;
(void) WriteBlobByte(buff,c);
}
#else
ssize_t
i;
unsigned char
*buffer;
ssize_t
count,
length;
buffer=(unsigned char *) AcquireQuantumMemory(MagickMaxBufferExtent,
sizeof(*buffer));
if (buffer != (unsigned char *) NULL)
{
i=0;
while ((length=ReadBlob(image,MagickMaxBufferExtent,buffer)) != 0)
{
count=0;
for (i=0; i < (ssize_t) length; i+=count)
{
count=WriteBlob(buff,(size_t) (length-i),buffer+i);
if (count <= 0)
break;
}
if (i < (ssize_t) length)
break;
}
buffer=(unsigned char *) RelinquishMagickMemory(buffer);
}
#endif
}
profile=AcquireStringInfo((size_t) GetBlobSize(buff));
SetStringInfoDatum(profile,GetBlobStreamData(buff));
status=SetImageProfile(image,name,profile);
profile=DestroyStringInfo(profile);
if (status == MagickFalse)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
blob=DetachBlob(buff->blob);
blob=RelinquishMagickMemory(blob);
buff=DestroyImage(buff);
}
if ((LocaleCompare(image_info->magick,"ICC") == 0) ||
(LocaleCompare(image_info->magick,"ICM") == 0))
{
buff=AcquireImage((ImageInfo *) NULL);
if (buff == (Image *) NULL)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
blob=(unsigned char *) AcquireQuantumMemory(length,sizeof(unsigned char));
if (blob == (unsigned char *) NULL)
{
buff=DestroyImage(buff);
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
}
AttachBlob(buff->blob,blob,length);
for ( ; ; )
{
c=ReadBlobByte(image);
if (c == EOF)
break;
(void) WriteBlobByte(buff,(unsigned char) c);
}
profile=AcquireStringInfo((size_t) GetBlobSize(buff));
SetStringInfoDatum(profile,GetBlobStreamData(buff));
(void) SetImageProfile(image,"icc",profile);
profile=DestroyStringInfo(profile);
blob=DetachBlob(buff->blob);
blob=(unsigned char *) RelinquishMagickMemory(blob);
buff=DestroyImage(buff);
}
if (LocaleCompare(image_info->magick,"IPTC") == 0)
{
register unsigned char
*p;
buff=AcquireImage((ImageInfo *) NULL);
if (buff == (Image *) NULL)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
blob=(unsigned char *) AcquireQuantumMemory(length,sizeof(unsigned char));
if (blob == (unsigned char *) NULL)
{
buff=DestroyImage(buff);
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
}
AttachBlob(buff->blob,blob,length);
/* write out the header - length field patched below */
(void) WriteBlob(buff,11,(unsigned char *) "8BIM\04\04\0\0\0\0\0");
(void) WriteBlobByte(buff,0xc6);
if (LocaleCompare(image_info->magick,"IPTCTEXT") == 0)
{
length=(size_t) parse8BIM(image,buff);
if (length & 1)
(void) WriteBlobByte(buff,0x00);
}
else if (LocaleCompare(image_info->magick,"IPTCWTEXT") == 0)
{
}
else
{
for ( ; ; )
{
c=ReadBlobByte(image);
if (c == EOF)
break;
(void) WriteBlobByte(buff,(unsigned char) c);
}
}
profile=AcquireStringInfo((size_t) GetBlobSize(buff));
/*
subtract off the length of the 8BIM stuff.
*/
length=GetStringInfoLength(profile)-12;
p=GetStringInfoDatum(profile);
p[10]=(unsigned char) (length >> 8);
p[11]=(unsigned char) (length & 0xff);
SetStringInfoDatum(profile,GetBlobStreamData(buff));
(void) SetImageProfile(image,"8bim",profile);
profile=DestroyStringInfo(profile);
blob=DetachBlob(buff->blob);
blob=(unsigned char *) RelinquishMagickMemory(blob);
buff=DestroyImage(buff);
}
if (LocaleCompare(image_info->magick,"XMP") == 0)
{
buff=AcquireImage((ImageInfo *) NULL);
if (buff == (Image *) NULL)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
blob=(unsigned char *) AcquireQuantumMemory(length,sizeof(unsigned char));
if (blob == (unsigned char *) NULL)
{
buff=DestroyImage(buff);
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
}
AttachBlob(buff->blob,blob,length);
for ( ; ; )
{
c=ReadBlobByte(image);
if (c == EOF)
break;
(void) WriteBlobByte(buff,(unsigned char) c);
}
profile=AcquireStringInfo((size_t) GetBlobSize(buff));
SetStringInfoDatum(profile,GetBlobStreamData(buff));
(void) SetImageProfile(image,"xmp",profile);
profile=DestroyStringInfo(profile);
blob=DetachBlob(buff->blob);
blob=(unsigned char *) RelinquishMagickMemory(blob);
buff=DestroyImage(buff);
}
(void) CloseBlob(image);
return(GetFirstImageInList(image));
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e g i s t e r M E T A I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% RegisterMETAImage() adds attributes for the META image format to
% the list of supported formats. The attributes include the image format
% tag, a method to read and/or write the format, whether the format
% supports the saving of more than one frame to the same file or blob,
% whether the format supports native in-memory I/O, and a brief
% description of the format.
%
% The format of the RegisterMETAImage method is:
%
% size_t RegisterMETAImage(void)
%
*/
ModuleExport size_t RegisterMETAImage(void)
{
MagickInfo
*entry;
entry=SetMagickInfo("8BIM");
entry->decoder=(DecodeImageHandler *) ReadMETAImage;
entry->encoder=(EncodeImageHandler *) WriteMETAImage;
entry->adjoin=MagickFalse;
entry->stealth=MagickTrue;
entry->seekable_stream=MagickTrue;
entry->description=ConstantString("Photoshop resource format");
entry->module=ConstantString("META");
(void) RegisterMagickInfo(entry);
entry=SetMagickInfo("8BIMTEXT");
entry->decoder=(DecodeImageHandler *) ReadMETAImage;
entry->encoder=(EncodeImageHandler *) WriteMETAImage;
entry->adjoin=MagickFalse;
entry->stealth=MagickTrue;
entry->seekable_stream=MagickTrue;
entry->description=ConstantString("Photoshop resource text format");
entry->module=ConstantString("META");
(void) RegisterMagickInfo(entry);
entry=SetMagickInfo("8BIMWTEXT");
entry->decoder=(DecodeImageHandler *) ReadMETAImage;
entry->encoder=(EncodeImageHandler *) WriteMETAImage;
entry->adjoin=MagickFalse;
entry->stealth=MagickTrue;
entry->seekable_stream=MagickTrue;
entry->description=ConstantString("Photoshop resource wide text format");
entry->module=ConstantString("META");
(void) RegisterMagickInfo(entry);
entry=SetMagickInfo("APP1");
entry->decoder=(DecodeImageHandler *) ReadMETAImage;
entry->encoder=(EncodeImageHandler *) WriteMETAImage;
entry->adjoin=MagickFalse;
entry->stealth=MagickTrue;
entry->seekable_stream=MagickTrue;
entry->description=ConstantString("Raw application information");
entry->module=ConstantString("META");
(void) RegisterMagickInfo(entry);
entry=SetMagickInfo("APP1JPEG");
entry->decoder=(DecodeImageHandler *) ReadMETAImage;
entry->encoder=(EncodeImageHandler *) WriteMETAImage;
entry->adjoin=MagickFalse;
entry->stealth=MagickTrue;
entry->seekable_stream=MagickTrue;
entry->description=ConstantString("Raw JPEG binary data");
entry->module=ConstantString("META");
(void) RegisterMagickInfo(entry);
entry=SetMagickInfo("EXIF");
entry->decoder=(DecodeImageHandler *) ReadMETAImage;
entry->encoder=(EncodeImageHandler *) WriteMETAImage;
entry->adjoin=MagickFalse;
entry->stealth=MagickTrue;
entry->seekable_stream=MagickTrue;
entry->description=ConstantString("Exif digital camera binary data");
entry->module=ConstantString("META");
(void) RegisterMagickInfo(entry);
entry=SetMagickInfo("XMP");
entry->decoder=(DecodeImageHandler *) ReadMETAImage;
entry->encoder=(EncodeImageHandler *) WriteMETAImage;
entry->adjoin=MagickFalse;
entry->stealth=MagickTrue;
entry->seekable_stream=MagickTrue;
entry->description=ConstantString("Adobe XML metadata");
entry->module=ConstantString("META");
(void) RegisterMagickInfo(entry);
entry=SetMagickInfo("ICM");
entry->decoder=(DecodeImageHandler *) ReadMETAImage;
entry->encoder=(EncodeImageHandler *) WriteMETAImage;
entry->adjoin=MagickFalse;
entry->stealth=MagickTrue;
entry->seekable_stream=MagickTrue;
entry->description=ConstantString("ICC Color Profile");
entry->module=ConstantString("META");
(void) RegisterMagickInfo(entry);
entry=SetMagickInfo("ICC");
entry->decoder=(DecodeImageHandler *) ReadMETAImage;
entry->encoder=(EncodeImageHandler *) WriteMETAImage;
entry->adjoin=MagickFalse;
entry->stealth=MagickTrue;
entry->seekable_stream=MagickTrue;
entry->description=ConstantString("ICC Color Profile");
entry->module=ConstantString("META");
(void) RegisterMagickInfo(entry);
entry=SetMagickInfo("IPTC");
entry->decoder=(DecodeImageHandler *) ReadMETAImage;
entry->encoder=(EncodeImageHandler *) WriteMETAImage;
entry->adjoin=MagickFalse;
entry->stealth=MagickTrue;
entry->seekable_stream=MagickTrue;
entry->description=ConstantString("IPTC Newsphoto");
entry->module=ConstantString("META");
(void) RegisterMagickInfo(entry);
entry=SetMagickInfo("IPTCTEXT");
entry->decoder=(DecodeImageHandler *) ReadMETAImage;
entry->encoder=(EncodeImageHandler *) WriteMETAImage;
entry->adjoin=MagickFalse;
entry->stealth=MagickTrue;
entry->seekable_stream=MagickTrue;
entry->description=ConstantString("IPTC Newsphoto text format");
entry->module=ConstantString("META");
(void) RegisterMagickInfo(entry);
entry=SetMagickInfo("IPTCWTEXT");
entry->decoder=(DecodeImageHandler *) ReadMETAImage;
entry->encoder=(EncodeImageHandler *) WriteMETAImage;
entry->adjoin=MagickFalse;
entry->stealth=MagickTrue;
entry->seekable_stream=MagickTrue;
entry->description=ConstantString("IPTC Newsphoto text format");
entry->module=ConstantString("META");
(void) RegisterMagickInfo(entry);
return(MagickImageCoderSignature);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% U n r e g i s t e r M E T A I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% UnregisterMETAImage() removes format registrations made by the
% META module from the list of supported formats.
%
% The format of the UnregisterMETAImage method is:
%
% UnregisterMETAImage(void)
%
*/
ModuleExport void UnregisterMETAImage(void)
{
(void) UnregisterMagickInfo("8BIM");
(void) UnregisterMagickInfo("8BIMTEXT");
(void) UnregisterMagickInfo("8BIMWTEXT");
(void) UnregisterMagickInfo("EXIF");
(void) UnregisterMagickInfo("APP1");
(void) UnregisterMagickInfo("APP1JPEG");
(void) UnregisterMagickInfo("ICCTEXT");
(void) UnregisterMagickInfo("ICM");
(void) UnregisterMagickInfo("ICC");
(void) UnregisterMagickInfo("IPTC");
(void) UnregisterMagickInfo("IPTCTEXT");
(void) UnregisterMagickInfo("IPTCWTEXT");
(void) UnregisterMagickInfo("XMP");
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% W r i t e M E T A I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% WriteMETAImage() writes a META image to a file.
%
% The format of the WriteMETAImage method is:
%
% MagickBooleanType WriteMETAImage(const ImageInfo *image_info,
% Image *image)
%
% Compression code contributed by Kyle Shorter.
%
% A description of each parameter follows:
%
% o image_info: Specifies a pointer to an ImageInfo structure.
%
% o image: A pointer to a Image structure.
%
*/
static size_t GetIPTCStream(unsigned char **info,size_t length)
{
int
c;
register ssize_t
i;
register unsigned char
*p;
size_t
extent,
info_length;
unsigned char
buffer[4] = { '\0', '\0', '\0', '\0' };
unsigned int
marker;
size_t
tag_length;
p=(*info);
extent=length;
if ((*p == 0x1c) && (*(p+1) == 0x02))
return(length);
/*
Extract IPTC from 8BIM resource block.
*/
while (extent >= 12)
{
if (strncmp((const char *) p,"8BIM",4))
break;
p+=4;
extent-=4;
marker=(unsigned int) (*p) << 8 | *(p+1);
p+=2;
extent-=2;
c=*p++;
extent--;
c|=0x01;
if ((size_t) c >= extent)
break;
p+=c;
extent-=c;
if (extent < 4)
break;
tag_length=(((size_t) *p) << 24) | (((size_t) *(p+1)) << 16) |
(((size_t) *(p+2)) << 8) | ((size_t) *(p+3));
p+=4;
extent-=4;
if (tag_length > extent)
break;
if (marker == IPTC_ID)
{
*info=p;
return(tag_length);
}
if ((tag_length & 0x01) != 0)
tag_length++;
p+=tag_length;
extent-=tag_length;
}
/*
Find the beginning of the IPTC info.
*/
p=(*info);
tag_length=0;
iptc_find:
info_length=0;
marker=MagickFalse;
while (length != 0)
{
c=(*p++);
length--;
if (length == 0)
break;
if (c == 0x1c)
{
p--;
*info=p; /* let the caller know were it is */
break;
}
}
/*
Determine the length of the IPTC info.
*/
while (length != 0)
{
c=(*p++);
length--;
if (length == 0)
break;
if (c == 0x1c)
marker=MagickTrue;
else
if (marker)
break;
else
continue;
info_length++;
/*
Found the 0x1c tag; skip the dataset and record number tags.
*/
c=(*p++); /* should be 2 */
length--;
if (length == 0)
break;
if ((info_length == 1) && (c != 2))
goto iptc_find;
info_length++;
c=(*p++); /* should be 0 */
length--;
if (length == 0)
break;
if ((info_length == 2) && (c != 0))
goto iptc_find;
info_length++;
/*
Decode the length of the block that follows - ssize_t or short format.
*/
c=(*p++);
length--;
if (length == 0)
break;
info_length++;
if ((c & 0x80) != 0)
{
for (i=0; i < 4; i++)
{
buffer[i]=(*p++);
length--;
if (length == 0)
break;
info_length++;
}
tag_length=(((size_t) buffer[0]) << 24) |
(((size_t) buffer[1]) << 16) |
(((size_t) buffer[2]) << 8) | (((size_t) buffer[3]));
}
else
{
tag_length=(size_t) (c << 8);
c=(*p++);
length--;
if (length == 0)
break;
info_length++;
tag_length|=c;
}
if (tag_length > (length+1))
break;
p+=tag_length;
length-=tag_length;
if (length == 0)
break;
info_length+=tag_length;
}
return(info_length);
}
static void formatString(Image *ofile, const char *s, int len)
{
char
temp[MaxTextExtent];
(void) WriteBlobByte(ofile,'"');
for (; len > 0; len--, s++) {
int c = (*s) & 255;
switch (c) {
case '&':
(void) WriteBlobString(ofile,"&amp;");
break;
#ifdef HANDLE_GT_LT
case '<':
(void) WriteBlobString(ofile,"&lt;");
break;
case '>':
(void) WriteBlobString(ofile,"&gt;");
break;
#endif
case '"':
(void) WriteBlobString(ofile,"&quot;");
break;
default:
if (isprint(c))
(void) WriteBlobByte(ofile,(unsigned char) *s);
else
{
(void) FormatLocaleString(temp,MaxTextExtent,"&#%d;", c & 255);
(void) WriteBlobString(ofile,temp);
}
break;
}
}
#if defined(MAGICKCORE_WINDOWS_SUPPORT)
(void) WriteBlobString(ofile,"\"\r\n");
#else
#if defined(macintosh)
(void) WriteBlobString(ofile,"\"\r");
#else
(void) WriteBlobString(ofile,"\"\n");
#endif
#endif
}
typedef struct _tag_spec
{
short
id;
const char
*name;
} tag_spec;
static const tag_spec tags[] = {
{ 5, "Image Name" },
{ 7, "Edit Status" },
{ 10, "Priority" },
{ 15, "Category" },
{ 20, "Supplemental Category" },
{ 22, "Fixture Identifier" },
{ 25, "Keyword" },
{ 30, "Release Date" },
{ 35, "Release Time" },
{ 40, "Special Instructions" },
{ 45, "Reference Service" },
{ 47, "Reference Date" },
{ 50, "Reference Number" },
{ 55, "Created Date" },
{ 60, "Created Time" },
{ 65, "Originating Program" },
{ 70, "Program Version" },
{ 75, "Object Cycle" },
{ 80, "Byline" },
{ 85, "Byline Title" },
{ 90, "City" },
{ 95, "Province State" },
{ 100, "Country Code" },
{ 101, "Country" },
{ 103, "Original Transmission Reference" },
{ 105, "Headline" },
{ 110, "Credit" },
{ 115, "Source" },
{ 116, "Copyright String" },
{ 120, "Caption" },
{ 121, "Image Orientation" },
{ 122, "Caption Writer" },
{ 131, "Local Caption" },
{ 200, "Custom Field 1" },
{ 201, "Custom Field 2" },
{ 202, "Custom Field 3" },
{ 203, "Custom Field 4" },
{ 204, "Custom Field 5" },
{ 205, "Custom Field 6" },
{ 206, "Custom Field 7" },
{ 207, "Custom Field 8" },
{ 208, "Custom Field 9" },
{ 209, "Custom Field 10" },
{ 210, "Custom Field 11" },
{ 211, "Custom Field 12" },
{ 212, "Custom Field 13" },
{ 213, "Custom Field 14" },
{ 214, "Custom Field 15" },
{ 215, "Custom Field 16" },
{ 216, "Custom Field 17" },
{ 217, "Custom Field 18" },
{ 218, "Custom Field 19" },
{ 219, "Custom Field 20" }
};
static int formatIPTC(Image *ifile, Image *ofile)
{
char
temp[MaxTextExtent];
unsigned int
foundiptc,
tagsfound;
unsigned char
recnum,
dataset;
unsigned char
*readable,
*str;
ssize_t
tagindx,
taglen;
int
i,
tagcount = (int) (sizeof(tags) / sizeof(tag_spec));
int
c;
foundiptc = 0; /* found the IPTC-Header */
tagsfound = 0; /* number of tags found */
c = ReadBlobByte(ifile);
while (c != EOF)
{
if (c == 0x1c)
foundiptc = 1;
else
{
if (foundiptc)
return -1;
else
continue;
}
/* we found the 0x1c tag and now grab the dataset and record number tags */
c = ReadBlobByte(ifile);
if (c == EOF) return -1;
dataset = (unsigned char) c;
c = ReadBlobByte(ifile);
if (c == EOF) return -1;
recnum = (unsigned char) c;
/* try to match this record to one of the ones in our named table */
for (i=0; i< tagcount; i++)
{
if (tags[i].id == (short) recnum)
break;
}
if (i < tagcount)
readable = (unsigned char *) tags[i].name;
else
readable = (unsigned char *) "";
/*
We decode the length of the block that follows - ssize_t or short fmt.
*/
c=ReadBlobByte(ifile);
if (c == EOF) return -1;
if (c & (unsigned char) 0x80)
return 0;
else
{
int
c0;
c0=ReadBlobByte(ifile);
if (c0 == EOF) return -1;
taglen = (c << 8) | c0;
}
if (taglen < 0) return -1;
/* make a buffer to hold the tag datand snag it from the input stream */
str=(unsigned char *) AcquireQuantumMemory((size_t) (taglen+MaxTextExtent),
sizeof(*str));
if (str == (unsigned char *) NULL)
{
printf("MemoryAllocationFailed");
return 0;
}
for (tagindx=0; tagindx<taglen; tagindx++)
{
c=ReadBlobByte(ifile);
if (c == EOF) return -1;
str[tagindx] = (unsigned char) c;
}
str[taglen] = 0;
/* now finish up by formatting this binary data into ASCII equivalent */
if (strlen((char *)readable) > 0)
(void) FormatLocaleString(temp,MaxTextExtent,"%d#%d#%s=",
(unsigned int) dataset, (unsigned int) recnum, readable);
else
(void) FormatLocaleString(temp,MaxTextExtent,"%d#%d=",
(unsigned int) dataset,(unsigned int) recnum);
(void) WriteBlobString(ofile,temp);
formatString( ofile, (char *)str, taglen );
str=(unsigned char *) RelinquishMagickMemory(str);
tagsfound++;
c=ReadBlobByte(ifile);
}
return((int) tagsfound);
}
static int readWordFromBuffer(char **s, ssize_t *len)
{
unsigned char
buffer[2];
int
i,
c;
for (i=0; i<2; i++)
{
c = *(*s)++; (*len)--;
if (*len < 0) return -1;
buffer[i] = (unsigned char) c;
}
return (((int) buffer[ 0 ]) << 8) |
(((int) buffer[ 1 ]));
}
static int formatIPTCfromBuffer(Image *ofile, char *s, ssize_t len)
{
char
temp[MaxTextExtent];
unsigned int
foundiptc,
tagsfound;
unsigned char
recnum,
dataset;
unsigned char
*readable,
*str;
ssize_t
tagindx,
taglen;
int
i,
tagcount = (int) (sizeof(tags) / sizeof(tag_spec));
int
c;
foundiptc = 0; /* found the IPTC-Header */
tagsfound = 0; /* number of tags found */
while (len > 0)
{
c = *s++; len--;
if (c == 0x1c)
foundiptc = 1;
else
{
if (foundiptc)
return -1;
else
continue;
}
/*
We found the 0x1c tag and now grab the dataset and record number tags.
*/
c = *s++; len--;
if (len < 0) return -1;
dataset = (unsigned char) c;
c = *s++; len--;
if (len < 0) return -1;
recnum = (unsigned char) c;
/* try to match this record to one of the ones in our named table */
for (i=0; i< tagcount; i++)
if (tags[i].id == (short) recnum)
break;
if (i < tagcount)
readable=(unsigned char *) tags[i].name;
else
readable=(unsigned char *) "";
/*
We decode the length of the block that follows - ssize_t or short fmt.
*/
c=(*s++);
len--;
if (len < 0)
return(-1);
if (c & (unsigned char) 0x80)
return(0);
else
{
s--;
len++;
taglen=readWordFromBuffer(&s, &len);
}
if (taglen < 0)
return(-1);
/* make a buffer to hold the tag datand snag it from the input stream */
str=(unsigned char *) AcquireQuantumMemory((size_t) (taglen+MaxTextExtent),
sizeof(*str));
if (str == (unsigned char *) NULL)
{
printf("MemoryAllocationFailed");
return 0;
}
for (tagindx=0; tagindx<taglen; tagindx++)
{
c = *s++; len--;
if (len < 0)
return(-1);
str[tagindx]=(unsigned char) c;
}
str[taglen]=0;
/* now finish up by formatting this binary data into ASCII equivalent */
if (strlen((char *)readable) > 0)
(void) FormatLocaleString(temp,MaxTextExtent,"%d#%d#%s=",
(unsigned int) dataset,(unsigned int) recnum, readable);
else
(void) FormatLocaleString(temp,MaxTextExtent,"%d#%d=",
(unsigned int) dataset,(unsigned int) recnum);
(void) WriteBlobString(ofile,temp);
formatString( ofile, (char *)str, taglen );
str=(unsigned char *) RelinquishMagickMemory(str);
tagsfound++;
}
return ((int) tagsfound);
}
static int format8BIM(Image *ifile, Image *ofile)
{
char
temp[MaxTextExtent];
unsigned int
foundOSType;
int
ID,
resCount,
i,
c;
ssize_t
count;
unsigned char
*PString,
*str;
resCount=0;
foundOSType=0; /* found the OSType */
(void) foundOSType;
c=ReadBlobByte(ifile);
while (c != EOF)
{
if (c == '8')
{
unsigned char
buffer[5];
buffer[0]=(unsigned char) c;
for (i=1; i<4; i++)
{
c=ReadBlobByte(ifile);
if (c == EOF)
return(-1);
buffer[i] = (unsigned char) c;
}
buffer[4]=0;
if (strcmp((const char *)buffer, "8BIM") == 0)
foundOSType=1;
else
continue;
}
else
{
c=ReadBlobByte(ifile);
continue;
}
/*
We found the OSType (8BIM) and now grab the ID, PString, and Size fields.
*/
ID=(int) ReadBlobMSBShort(ifile);
if (ID < 0)
return(-1);
{
unsigned char
plen;
c=ReadBlobByte(ifile);
if (c == EOF)
return(-1);
plen = (unsigned char) c;
PString=(unsigned char *) AcquireQuantumMemory((size_t) (plen+
MaxTextExtent),sizeof(*PString));
if (PString == (unsigned char *) NULL)
{
printf("MemoryAllocationFailed");
return 0;
}
for (i=0; i<plen; i++)
{
c=ReadBlobByte(ifile);
if (c == EOF) return -1;
PString[i] = (unsigned char) c;
}
PString[ plen ] = 0;
if ((plen & 0x01) == 0)
{
c=ReadBlobByte(ifile);
if (c == EOF)
return(-1);
}
}
count = (int) ReadBlobMSBLong(ifile);
if (count < 0) return -1;
/* make a buffer to hold the datand snag it from the input stream */
str=(unsigned char *) AcquireQuantumMemory((size_t) count,sizeof(*str));
if (str == (unsigned char *) NULL)
{
printf("MemoryAllocationFailed");
return 0;
}
for (i=0; i < (ssize_t) count; i++)
{
c=ReadBlobByte(ifile);
if (c == EOF)
return(-1);
str[i]=(unsigned char) c;
}
/* we currently skip thumbnails, since it does not make
* any sense preserving them in a real world application
*/
if (ID != THUMBNAIL_ID)
{
/* now finish up by formatting this binary data into
* ASCII equivalent
*/
if (strlen((const char *)PString) > 0)
(void) FormatLocaleString(temp,MaxTextExtent,"8BIM#%d#%s=",ID,
PString);
else
(void) FormatLocaleString(temp,MaxTextExtent,"8BIM#%d=",ID);
(void) WriteBlobString(ofile,temp);
if (ID == IPTC_ID)
{
formatString(ofile, "IPTC", 4);
formatIPTCfromBuffer(ofile, (char *)str, (ssize_t) count);
}
else
formatString(ofile, (char *)str, (ssize_t) count);
}
str=(unsigned char *) RelinquishMagickMemory(str);
PString=(unsigned char *) RelinquishMagickMemory(PString);
resCount++;
c=ReadBlobByte(ifile);
}
return resCount;
}
static MagickBooleanType WriteMETAImage(const ImageInfo *image_info,
Image *image)
{
const StringInfo
*profile;
MagickBooleanType
status;
size_t
length;
/*
Open image file.
*/
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickSignature);
assert(image != (Image *) NULL);
assert(image->signature == MagickSignature);
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
length=0;
if (LocaleCompare(image_info->magick,"8BIM") == 0)
{
/*
Write 8BIM image.
*/
profile=GetImageProfile(image,"8bim");
if (profile == (StringInfo *) NULL)
ThrowWriterException(CoderError,"No8BIMDataIsAvailable");
status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
if (status == MagickFalse)
return(status);
(void) WriteBlob(image,GetStringInfoLength(profile),
GetStringInfoDatum(profile));
(void) CloseBlob(image);
return(MagickTrue);
}
if (LocaleCompare(image_info->magick,"iptc") == 0)
{
size_t
length;
unsigned char
*info;
profile=GetImageProfile(image,"iptc");
if (profile == (StringInfo *) NULL)
profile=GetImageProfile(image,"8bim");
if (profile == (StringInfo *) NULL)
ThrowWriterException(CoderError,"No8BIMDataIsAvailable");
status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
info=GetStringInfoDatum(profile);
length=GetStringInfoLength(profile);
length=GetIPTCStream(&info,length);
if (length == 0)
ThrowWriterException(CoderError,"NoIPTCProfileAvailable");
(void) WriteBlob(image,length,info);
(void) CloseBlob(image);
return(MagickTrue);
}
if (LocaleCompare(image_info->magick,"8BIMTEXT") == 0)
{
Image
*buff;
profile=GetImageProfile(image,"8bim");
if (profile == (StringInfo *) NULL)
ThrowWriterException(CoderError,"No8BIMDataIsAvailable");
status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
if (status == MagickFalse)
return(status);
buff=AcquireImage((ImageInfo *) NULL);
if (buff == (Image *) NULL)
ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
AttachBlob(buff->blob,GetStringInfoDatum(profile),
GetStringInfoLength(profile));
format8BIM(buff,image);
(void) DetachBlob(buff->blob);
buff=DestroyImage(buff);
(void) CloseBlob(image);
return(MagickTrue);
}
if (LocaleCompare(image_info->magick,"8BIMWTEXT") == 0)
return(MagickFalse);
if (LocaleCompare(image_info->magick,"IPTCTEXT") == 0)
{
Image
*buff;
unsigned char
*info;
profile=GetImageProfile(image,"8bim");
if (profile == (StringInfo *) NULL)
ThrowWriterException(CoderError,"No8BIMDataIsAvailable");
info=GetStringInfoDatum(profile);
length=GetStringInfoLength(profile);
length=GetIPTCStream(&info,length);
if (length == 0)
ThrowWriterException(CoderError,"NoIPTCProfileAvailable");
status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
if (status == MagickFalse)
return(status);
buff=AcquireImage((ImageInfo *) NULL);
if (buff == (Image *) NULL)
ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
AttachBlob(buff->blob,info,length);
formatIPTC(buff,image);
(void) DetachBlob(buff->blob);
buff=DestroyImage(buff);
(void) CloseBlob(image);
return(MagickTrue);
}
if (LocaleCompare(image_info->magick,"IPTCWTEXT") == 0)
return(MagickFalse);
if ((LocaleCompare(image_info->magick,"APP1") == 0) ||
(LocaleCompare(image_info->magick,"EXIF") == 0) ||
(LocaleCompare(image_info->magick,"XMP") == 0))
{
/*
(void) Write APP1 image.
*/
profile=GetImageProfile(image,image_info->magick);
if (profile == (StringInfo *) NULL)
ThrowWriterException(CoderError,"NoAPP1DataIsAvailable");
status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
if (status == MagickFalse)
return(status);
(void) WriteBlob(image,GetStringInfoLength(profile),
GetStringInfoDatum(profile));
(void) CloseBlob(image);
return(MagickTrue);
}
if ((LocaleCompare(image_info->magick,"ICC") == 0) ||
(LocaleCompare(image_info->magick,"ICM") == 0))
{
/*
Write ICM image.
*/
profile=GetImageProfile(image,"icc");
if (profile == (StringInfo *) NULL)
ThrowWriterException(CoderError,"NoColorProfileIsAvailable");
status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
if (status == MagickFalse)
return(status);
(void) WriteBlob(image,GetStringInfoLength(profile),
GetStringInfoDatum(profile));
(void) CloseBlob(image);
return(MagickTrue);
}
return(MagickFalse);
}